"ha" column or row of the kana syllabary

Momosuke Fukuzawa

Reading: Momosuke Fukuzawa (福ざわ桃スケ) Attached Name: Momosuke Fukuzawa Maiden Name: Momosuke Iwasaki Momosuke Fukuzawa was a businessman active from the late Meiji period to the early Showa period. He was mainly active in the Japanese electric power industry and was nicknamed the "King of Electric Power in Japan. Momosuke Fukuzawa, maiden name Momosuke Iwasaki, was born in Arako Village, Yokomi-gun, Musashi Province,...

Introduction to Damsdam terminology"ha" column or row of the kana syllabary

flash board

Read : flashboardAlternative name : 決寫时板,決瀉板,欠寫板,欠瀉板,欠瀉板,欠瀉板 (sometimes written in hiragana because "sha" is difficult to read), Ryukai gateEnglish : flashboardFlashboard is driftwood that has flowed into a reservoir...

"ha" column or row of the kana syllabary

weir (usu. for irrigation)

Headworks are a series of structures, such as water intakes and weirs, that are used to intake agricultural water from rivers and streams. A headworks is a structure with a high ...

Introduction to Damsdam terminology"ha" column or row of the kana syllabary

hyetograph

The hyetograph is a graph showing the amount of rainfall over time. The horizontal axis shows time, and the vertical axis shows rainfall on the vertical axis. It shows the amount of rainfall in hours...

Introduction to Damsdam terminology"ha" column or row of the kana syllabary

hydrograph

Read : hydrographAlso known as -English : hydrographA hydrograph is a graph that shows changes in the amount of water flowing into a dam or river and the water level over time. The graph shows time on the horizontal axis and flow rate and water level on the vertical axis. The graph is created by...

Introduction to Damsdam terminology"ha" column or row of the kana syllabary

stonemason

Reading: Hari-Ishikou alias: -Hari-Ishikou is one of the construction methods mainly used for rockfill dams and other slopes, in which larger stones (500-1000 mm in diameter) are laid down and then smaller stones are filled in between them. It is a very fine construction with no unevenness...

Introduction to Damsdam terminology"ha" column or row of the kana syllabary

unequal arch dam

Read: Hutoatsu Arch Dam Alias: - An unequal thickness arch dam is an arch-type concrete dam with thickened concrete sections on both banks of the embankment. When an arch dam is built in a wide V-shaped valley, the load on both banks of the arch may be too much...

Introduction to Damsdam terminology"ha" column or row of the kana syllabary

sub-dam

A sub-dam is a weir generally installed downstream of a dam to buffer water falling from a flood discharge and prevent scouring. It is a type of damming. In most cases, the height of the embankment does not exceed 15 m, but if the original dam is large, the sub-dam may also be large...

Introduction to Damsdam terminology"ha" column or row of the kana syllabary

combined dam

Composite dam → Combined dam

Introduction to Damsdam terminology"ha" column or row of the kana syllabary

fillet

A fillet is a reinforcing thickening section placed at the bottom of the upstream side of a dam embankment. They are installed when the strength of the concrete dam cannot be maintained or to ensure stability against overturning. They are installed in a triangular shape so that the upstream slope is slower.

Introduction to Damsdam terminology"ha" column or row of the kana syllabary

Surface water intake system

A surface intake facility is a facility that withdraws water from the surface where the water temperature is warmer than the lower levels. It has the advantage of not affecting crops and organisms. In addition, dams for power generation are sometimes installed to prevent turbid water. In some dams, aging surface intake facilities are replaced with selective intake facilities to improve reliability, operability, and maintenance management.

Introduction to Damsdam terminology"ha" column or row of the kana syllabary

emergency flood discharge

An emergency flood discharge is a gate that prevents overflow of a dam during a flood. It is used in the event of a flood that is too large to be discharged by the normal flood discharge. In most cases, the emergency flood discharge is located near the top of the embankment.

Introduction to Damsdam terminology"ha" column or row of the kana syllabary

non-flood season

The non-flood season refers mainly to the winter months, when precipitation is low. This means that the water level of the dam lake is higher. The period varies from dam to dam and is set in detail. ⇔Flood season

Introduction to Damsdam terminology"ha" column or row of the kana syllabary

buttress dam

Buttress dams, also known as "support-wall dams," are dams that use concrete walls for support. There are only six such dams in Japan, and the Mitaki Dam (Tottori Prefecture), completed in 1937, was the last buttress dam in Japan. Because cement was an expensive material before World War II, buttress dams, which require less cement than gravity-type concrete dams, attracted attention and were constructed. However, as cement became less expensive, it was difficult to find engineers to work on the formwork, maintenance was not easy and costly, and there were durability problems.

Introduction to Damsdam terminology"ha" column or row of the kana syllabary

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